A wideband slot antenna for moblie phone applications

2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2015-07-01 DOI:10.1109/APCAP.2016.7843269

Weihua Zong, Xiangyang Wei

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引用次数: 10

Abstract

A wideband impedance matching technique is presented on slot antenna for mobile handset applications at lower frequency band. The antenna is printed on a 60*115 mm2 FR-4 substrate with 0.8 mm thickness. Two rectangular slots are etched on the ground with open ends at opposite edges. One of the two is called the main slot with size of 5 mm*50 mm, the other one is called the additional slot with size of 40 mm*1 mm. The main slot is fed by a 50 Ω microstrip connected with a folded strip surrounding around the boundary of the main slot inside the main slot region. The strip with folded shape can induce the current flowing around the main slot from the close end to the open end on the ground, which results in the increase of the current distribution path and the decrease of the frequency of the first resonant mode. The additional slot is etched on the top portion of the ground above the main slot to excite more current distributing around the main slot region. With the technique, two resonant modes are excited at the lower frequency band, and a wide frequency bandwidth of 0.82~1.18 GHz is obtained.

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用于移动电话应用的宽带槽天线

提出了一种低频段手机用槽天线的宽带阻抗匹配技术。天线印刷在厚度为0.8 mm的60*115 mm2 FR-4基板上。在地面上蚀刻两个矩形槽，两端相对边缘开着。其中一个称为主槽，尺寸为5mm * 50mm，另一个称为附加槽，尺寸为40mm * 1mm。主槽由50 Ω微带馈电，微带与围绕主槽区域内主槽边界的折叠带相连。折叠形状的条带可以诱导电流在地面上从闭合端流向主槽的开放端，从而导致电流分布路径的增加和第一谐振模频率的降低。附加槽蚀刻在主槽上方地面的顶部，以激发分布在主槽区域周围的更多电流。该技术在较低频段激发了两种谐振模式，获得了0.82~1.18 GHz的宽频带。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2015 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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